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參數資料
| 型號： | 54298FMQB |
| 英文描述： | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 中文描述： | 2，輸入數字復接器 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 90K |
| 代理商： | 54298FMQB |
TL/F/10215
5
June 1989
54298
Quad 2-Port Register (Multiplexer With Storage)
General Description
The ’298 is a quad 2-port register. It is the logical equivalent
of a quad 2-input multiplexer followed by a quad 4-bit edge-
triggered register. A Common Select input selects between
two 4-bit input ports (data sources). The selected data is
transferred to the output register synchronous with the
HIGH-to-LOW transition of the Clock input.
Features
Y
Select from two data sources
Y
Fully edge-triggered operation
Connection Diagram
Dual-In-Line Package
TL/F/10215–1
Order Number 54298DMQB or 54298FMQB
See NS Package Number J16A or W16A
Logic Symbol
TL/F/10215–2
V
CC
e
Pin 16
GND
e
Pin 8
Pin Names
Description
S
CP
I0a–I0d
I1a–I1d
Qa, Qd
Common Select Input
Clock Pulse Input (Active Falling Edge)
Source 0 Data Inputs
Source 1 Data Inputs
Flip-Flop Outputs
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
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